CVE-2020-15676: debian debian_linux Cross-site Scripting
CVSS: 6.1v3.1MediumModified
AliasesUBUNTU-CVE-2020-15676DEBIAN-CVE-2020-15676
Published 01-10-2020Last modified 04-08-2024
Vulnerability summary
CVE-2020-15676 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in debian debian_linux. EPSS estimates a 1.59% chance of exploitation in the next 30 days, higher than 75.3% of scored vulnerabilities.
CVSS score
6.1/10
010
Medium · v3.1 (NVD)EPSS score
1.59%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 29 · Related 13DLA-2387-1DLA-2408-1DSA-4768-1DSA-4770-1MGASA-2020-0377MGASA-2020-0378OPENSUSE-SU-2020:1555-1OPENSUSE-SU-2020:1574-1OPENSUSE-SU-2020:1780-1OPENSUSE-SU-2020:1785-1OPENSUSE-SU-2024:10600-1OPENSUSE-SU-2024:10601-1OPENSUSE-SU-2024:14572-1RHSA-2020:3832RHSA-2020:3833RHSA-2020:3834RHSA-2020:3835RHSA-2020:4080RHSA-2020:4155RHSA-2020:4156RHSA-2020:4157RHSA-2020:4158RHSA-2020:4163SUSE-SU-2020:14502-1SUSE-SU-2020:2747-1SUSE-SU-2020:2749-1SUSE-SU-2020:2759-1SUSE-SU-2020:3091-1USN-4546-1
Timeline
- 01-10-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
Firefox sometimes ran the onload handler for SVG elements that the DOM sanitizer decided to remove, resulting in JavaScript being executed after pasting attacker-controlled data into a contenteditable element. This vulnerability affects Firefox < 81, Thunderbird < 78.3, and Firefox ESR < 78.3.
CVSS metrics
4 scores · 3 sources · 2 versionsMedium 6.1Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- OSV · DebianEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
1.59%
Chance of exploitation in the next 30 days
Percentile
75%
Versus all other CVEs
30-day change
0.00 pp
From 1.59% on 19-09-2026
19-09-202619-10-2026
EPSS score1.59%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu5 products
- firefox< 81.0+build2-0ubuntu0.16.04.1 | < 81.0+build2-0ubuntu0.18.04.1 | < 81.0+build2-0ubuntu0.20.04.1
- mozjs38All versions (No fix recorded)
- mozjs52All versions (No fix recorded)
- mozjs68All versions (No fix recorded)
- thunderbird< 1:78.8.1+build1-0ubuntu0.18.04.1 | < 1:78.7.1+build1-0ubuntu0.20.04.1
Debian3 products
- firefox-esr< 78.3.0esr-1
- thunderbird< 1:78.3.1-1
- debian_linuxEOL9.0 | 10.0
Mozilla3 products
- firefox≥ unspecified, < 81 | < 81.0
- firefox_esr≥ unspecified, < 78.3 | < 78.3
- thunderbird≥ unspecified, < 78.3 | < 78.3
Opensuse1 product
- leapEOL15.1 | 15.2
4 vendors · 12 products
References
16 links- bugzilla.mozilla.org/show_bug.cgi?id=1646140X Refsource MISCIssue TrackingPermissions RequiredVendor Advisory
- lists.debian.org/debian-lts-announce/2020/10/msg00020.htmlMailing ListX Refsource MLISTThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-10/msg00074.htmlVendor AdvisoryX Refsource SUSEBroken LinkMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-10/msg00077.htmlVendor AdvisoryX Refsource SUSEBroken LinkMailing ListThird Party Advisory